Pulverizing-tool.



J. CARROLL.

PULVERIZING TOOL. APPLICATION FILED APRA, 1914.

1 O98,225 D Patented May 26, 1914.

have orrrca JOSEPH CABBULL, WIGAN, ENGLAND.

PULVERIZING-TOOL.

Specification of Letters Patent.

Patented May 26, 191%.

Application filed April 4, 1914. Serial No. 829,680.

To all whom it may concern:

Be it known that l, Josnrn CARROLL, a subject of the King of GreatBritain, reslding at Wigan, in the county of Lancaster, 1n the Kingdomof England, have invented certain new and useful Pulverizing-Tools, ofwhich the following is a specification.

The invention relates more particularly to a pulverizing tool which iscarried by a supporting frame and is rotated from the main wheel of themachine.

An object of the invention is to provide a pulverizing tool wherein aseries of helical blades may be revolved at high speed and the earth cutor pulverized into small fragments, which cutting tool is also providedwith an extended head or disk against which the pulverized material isthrown by the tool.

The invention is best described by aid of the accompanying drawings, inwhich,

Figure 1 is a side view of my apparatus; Fig. 2, a plan; and Fig. 3, aplan looking upward of the cutter, the cover thereof, and the shaftabove.

In these, A is a framework having at one end a link B, to which thehorse or the hauling rope is attached, and at the other end a pair ofhandles C C.

D is a main shaft, and E the main axle both carried on framework A, orin the case of D of a vertical continuation of this framework.

F is a gear wheel acting on pinion G on shaft D, which gearing drivesshaft D from the spur wheel F and wheel U at a greatly acceleratedspeed. Shaft D by sprocket gearing and chain H drives the shaft I, whichby bevel gearing J operates the dlgging device K. The frame is supportedon one side near the main shaft by adjustable stem L carrying theordinary bearing wheel M. A further wheel N is carried on a similaradjustable stem L near the handle. The smaller sprocket wheel O, thebevel gear J and the digger K are carried in an independent frame Phaving a rectangular projection Q sliding in a slot in the main frame.It is raised up and down by the spring bell crank handle R placedconveniently for the driver. I do not-claim as new the principle ofraising and lowering and adjusting the height of the cutting devicewhich is of course well known. Handle R Works on a cross spindle S, andis conveniently placed above the righthand handle for the operator towork.

In place of a quadrant and spring catch.

any other well known device can be used for I holding the handle inplace, or for raising and lowering the digging device, but I preferhandle and quadrant as the simplest.

The digging device consists in a casting of extremely hard tough metal,preferably steel alloy, having numerous blades cut out of it resemblingangers. There are eight shown in the drawing, but there can be anydesired number, from twoto eight. At the bottom it is preferably fiat asshown in Fig. 1.

T T are simple set-screw'devices whereby the adjustable stems of thewheels are held in place on the framework. The front ones T can ifdesired be attached directto the,

framework instead of being hung on the fixed axle E.

U is the driving wheel rotating on a round part of the front axle E, butthe part of the axle passing through the piece of framework W and themain frame is secured so as to hold rigidly in these frames.

The mode of act-ion is as follows :The horse or hauling rope beingplaced in position, and attached, and the bearing wheels adjusted to therequisite heights, namely wheel M to the height of the unplowed groundand N to the depth of the cut, the machine is slowly drawn forward. Thewheel U being serrated, takes a firm hold of the ground and revolves,turning with it the spur wheel F, and thus through pinion G the sprocketgear H. This turns the axle Iby means of sprocket Wheel O, and this inturn works the bevel gear J, and consequently revolves. at considerablespeed the cutter K. I This cutter slices the ground into extremely thinslices, and at the same time throws them up as a sort of dust againstthe cover X when they again fall down on to the ground. In this way theworms and insects and other vermin are killed at the same time. In myexperimental machine, the slices were about thirty to the foot, or aboutthree-eighths of an inch wide. Slices of this thickness appear to bemuch more easily cut by the cutter revolving rapidly, than a slab ofearth could be cut and turned over by the ordinary plow, as the cutterswork something like a milling cutter on a lathe, only with thisdiiferencethat the work is fed to the milling'cutter, whereas the cutteris fed to the work in my pulverizer. If the cover of the pulverizingtool has a sharp edge, it frequently cuts horizontally, the thin sliceof soil coming out over the top of the cutter, and so still furtherpulverizes the soil, but without sending it into the bearings or wheels.I prefer the cutter to stand vertically but in very stony or roughground, I may arrange it in a sloping position so that if it comesagainst a rock, tree root or the like which it can not disturb orcutthrough, it will ride over it, the frame being light enough for thispurpose. This however would only be requisite as a rule in colonies andabroad, as most English fields are sufiiciently clear of stones and thelike. In order to enable the main wheel. to have a sufficient grip onthe earth it is shown roughened, and it may be toothed or spiked.

I declare that what I claim is l. A pulverizing machine including incombination a supporting frame, a rotary pulverizing tool carried bysaid frame and I comprising a horizontal disk-shaped head and adownwardly projecting member carried by said head and having a pluralityof cutting blades, said head extending beyond said cutting blades.

2. A pulverizing machine including in combination a supporting frame, arotary pulverizing tool carried by said frame and comprising ahorizontal dislr-shaped head and a downwardly projecting member carriedby said head and having a plurality of helical blades, said headextending beyond said cutting blades.

In witness whereof, I have hereunto signed my name this 28th day ofMarch 1914, in the presence of two subscribing witnesses.

JUSEPH CARROLL. ll'itnesses CHAS. LusLin, JOHN MCLAOHLAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

